Affiliation:
1. Department of Food Science, University of Illinois, Urbana, Illinois 61801
Abstract
The formula for a modified Vogel and Johnson Agar is presented. In addition to the ingredients found in Vogel and Johnson Agar, the new medium contains, per liter: 5 g of beef extract, 2 g of deoxyribonucleic acid, 2 g of phosphatidyl choline and 780 units of catalase spread on the plates before inoculation. This new medium is as effective as Baird-Parker Agar in enumeration of stressed Staphylococcus aureus, and in enumeration of staphylococci from naturally contaminated processed food samples.
Publisher
International Association for Food Protection
Subject
Microbiology,Food Science
Cited by
16 articles.
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